Similar to Inge's Volvo story, I had a similar experience with the furnace several years back; the furnace would just suddenly intermittently just shut down.


The poor kid, and I mean a VERY young kid, had replaced one thing after another over several trips.


The last culprit of course was the least accessible and least likely (according to HVAC technicians) item - the simple circuit board assembly that he replaced.


I took one look at it and a whole row of mechanical relay socket pins had terrible cold joints. I took the opportunity to enlighten the young man on what a good


solid shiny solder joint should look like compared to bad ones.





Craig Cullum, Engineering Technologist, AMTELCO


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